At least 33 were killed and more than 120 injured in the blast at Pemex headquarters in Mexico City.
You will note that the explosion initially appears to be a dust cloud. No fire yet. This is because a large amount of gas was released violently but there was no spark. Just a pressure wave of gas that blew out violently. That is why the truck is able to stop momentarily. You then notice the spark ignites the cloud of chemicals and the explosion was enormous. This is a similar outcome from the Fuel Air bombs like the Daisy Cutter also called a BLU 96. Considered to be the some of the most powerful Non-nuclear weapons. Source: I am an engineer at a chemical plant.
